1. "Life is like a journey, there are hardships and happiness on the road. What we have to do is to mix bitterness with pleasure in suffering." -Mark Twain
2. "Failure is the mother of success. Only in failure can we find a way out of success, and only in suffering can we find happiness." -Edison
3. "Don't make excuses for failure, find ways for success, have fun in hardships, and strive for victory in difficulties." -Shakespeare
4. "Suffering is the teacher of life, and taking pleasure in suffering can stimulate our potential and make us stronger." -romain rolland
5. "Pain and happiness coexist, and life is to have fun in suffering, learn from happiness, and stick to the end." -Marx
having fun in suffering, Chinese word, pinyin: kǔzhōngzuòlè. It means to enjoy yourself without losing optimism in a difficult environment. From Song Chenzao's Eight Poems of Traveling to Lingshan with Chen Zaihuang's Book.